=====================  Product Identification  =====================

MSDS NAME:203130, COPPER (II) OXIDE 99.9999%
NIIN:01-446-5543
Status Code:A
MSDS Number: CLRZH
=== Responsible Party ===
Company:ALDRICH CHEMICAL CO INC
Address:1001 WEST ST PAUL AVE
Box:355
City:MILWAUKEE
State:WI
ZIP:53233
Country:US
Info Phone Num:414-273-3850
Emergency Phone Num:414-273-3850 EXT. 5996
CAGE:60928
=== Contractor Identification ===
Company:ALDRICH CHEMICAL CO INC
Address:1001 WEST ST PAUL AVE
Box:355
City:MILWAUKEE
State:WI
ZIP:53233
Country:US
Phone:414-273-3850
CAGE:60928
Company:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

=============  Composition/Information on Ingredients  =============

Name:COPPER (I I) OXIDE, (CUO) (EC NO.: 215-269-1)
Fraction by Wt: 99.9999%
ACGIH TLV:1 MG/M3, AS (CU)

=====================  Hazards Identification  =====================

Health Hazards Acute and Chronic:ACUTE: SKIN: CAUSES IRRITATION. MAY BE
    ABSORBED THROUGH THE SKIN. EYES: CAUSES IRRITATION. INHALATION:
    MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER RESPIRATORY
    TRACT. MAY BE HARMFU IF INHALED.  INGESTION: MAY BE HARMFUL IF
    SWALLOWED.
Effects of Overexposure:EYES: IRRITATION. SKIN:  IRRITATION. MAY BE
    HARMFUL IF ABSORBED THROUGH SKIN. INHALATION: IRRITATION OF UPPER
    RESPIRATORY TRACT.	MAY BE HARMFUL IF INHALED. INGESTION: MAY BE
    HARMFUL IF SWALLOWED.

=======================  First Aid Measures  =======================

First Aid:EYE CONTACT: FLUSH WITH COPIOUS AMOUNTS OF WATER FOR 15
    MINUTES. AND SEEK MEDICAL ATTENTION. SKIN CONTACT: WASH EXPOSED
    AREA WITH SOAP AND COPIOUS AMOUNTS OF WATER. INHALATION: MOVE TO
    FRESH AIR. IF N OT BREATHING, GIVE ARTIFICIAL RESPIRATION. IF
    BREATHING IS DIFFICUKLT, GIVE OXYGEN. INGESTION: IF SWALLOWED, WASH
    OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS. CALL A
    PHYSICIAN.

=====================  Fire Fighting Measures  =====================

Extinguishing Media:WATER SPRAY. CARBON DIOXIDE, DRY CHEMICAL POWDER,
    OR APPROPRIATE FOAM.
Fire Fighting Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS AND
    PROTECTIVE CLOTHING TO PREVENT CONTACT WITH SKIN AND EYES.
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

==================  Accidental Release Measures  ==================

Spill Release Procedures:WEAR RESPIRATOR, CHEMICAL SAFETY GOGGLES,
    RUBBER BOOTS, AND HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN A BAG AND
    HOLD FOR WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE AREA AND
    WASH SPILL SITE AFTER MATE RIAL PICKUP IS COMPLETE.

======================	Handling and Storage  ======================

Handling and Storage Precautions:DO NOT BREATHE DUST. AVOID CONTACT
    WITH EYES, SKIN, AND CLOTHING, AVOID PROLONGED OR REPEATED
    EXPOSURE. KEEP TIGHTLY CLOSED. STORE IN A COOL DRY PLACE.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:NIOSH/MSHA-APPROVED RESPIRATOR.
Ventilation:MECHANICAL EXHAUST REQUIRED.
Protective Gloves:COMPATIBLE CHEMICAL RESISTANT GLOVES.
Eye Protection:CHEMICAL SAFETY GOGGLES
Other Protective Equipment:SAFETY SHOWER AND EYE BATH.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

==================  Physical/Chemical Properties  ==================

HCC:N1
Spec Gravity:6.315
Appearance and Odor:BLACK POWDER

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
REDUCING AGENTS, HYDROGEN SULFIDE GAS, ALUMINUM, ALKALI METALS, FINELY
    POWDERED METALS.
Hazardous Decomposition Products:COPPER, COPPER ALLOYS, OCYGEN.
Conditions to Avoid Polymerization:WILL NOT OCCUR.

===================  Toxicological Information	===================

Toxicological Information:ACUTE EFFECTS  CAUSES SKIN IRRITATION. MAY BE
    HARMFUL IF ABSORBED THROUGH THE SKIN.  CAUSES EYE IRRITATION. 
    MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER RESPIRATORY
    TRACT. MAY BE HARMFUL IF I NHALED. MAY BE HARMFUL IF SWALLOWED. TO
    THE BEST OF OUR KNOWLEDGE, THE CHEMICAL, PHYSICAL, AND
    TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.
    RTECS #: GL7900000	 COPPER OXIDE. ADDITI ONAL INFORMATION	ACGIH
    TLV-TWA: 1MG/M3, AS (CU). ONLY SELECTED REGISTRY OF TOXIC EFFECTS
    OF CHEMICAL SUBSTANCES (RTECS) DATA IS PRESENTED HERE. SEE ACTUAL
    ENTRY IN RTECS FOR COMPLETE INFORMATION.

=====================  Ecological Information  =====================

Ecological:DATA NOT YET AVAILABLE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:CONTACT A LICENSED PROFESSIONAL WASTE DISPOSAL
    SERVICE TO DISPOSE OF THIS MATERIAL. DISSOLVE OR MIX THE MATERIAL
    WITH A COMBUSTIBLE SOLVENT AND BURN IN A CHEMICAL INCINERATOR 
    EQUIPPED WITH AN AFTER B URNER AND SCRUBBER. OBSERVE ALL FEDERAL,
    STATE, AND LOCAL ENVIRONMENTAL REGULATIONS.

===================  MSDS Transport Information  ===================

Transport Information:CONTACT ALDRICH CHEMICAL COMPANY FOR
    TRANSPORTATION INFORMATION.

=====================  Regulatory Information  =====================

SARA Title III Information:THIS PRODUCT IS SUBJECT TO SARA SECTION 313
    REPORTING REQUIREMENTS.
Federal Regulatory Information:EPA TSCA SECTION 8(B) CHEMICAL
    INVENTORY.	EPA TSCA SECTION 8(D) UNPUBLISHED HEALTH/SAFETY
    STUDIES. EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001.

=======================  Other Information  =======================

 Disclaimer (provided with this information by the compiling agencies):
 This information is formulated for use by elements of the Department
 of Defense.  The United States of America in no manner whatsoever,
 expressly or implied, warrants this information to be accurate and
 disclaims all liability for its use.  Any person utilizing this
 document should seek competent professional advice to verify and
 assume responsibility for the suitability of this information to their
 particular situation.

*** END OF RECORD ***